Window



.W. B. BURKE Oct. '16, 1951 WINDOW 2 SHEETS--SHEET l Filed April 3, 1946114. Een# ad INVENTOR.

WILBUR B.BURKE ATTORNEYS Oct. 16, 1951 w. B. BURKE WINDOW 2 SHEETS-SHEET2 Filed April 5, 1946 M W W uf v 4 NVENTOR.

WILBUR B. BURKE @MYOMWM ATTORN EYS Patented Oct. 16, 1951 UNITED. STATESPATENT OFFICE Windows, as commonly constructed, have certainwell-recognized handicaps.' Thesashes are unduly cumbersome and heavy.Their glass expanse transmits heat scifreelyV that thead'dition of stormwindows is resorted" to in winter'. 'They are awkward to clean on theoutside vunlessa ladder be used, and in efforts at cleaning from theinside, not all of theglass can be ei'e'ctively reached. In such effortsat doble'gl'ai'ng as have been attempted;A the attaining of 'asufliciently tight' seall to prevent "moisture accumulation andcondensation inthe space' between the glass has not bena'deqatelysuccessful. Added to this is the general tendencyof sashes tostick orbefmoved with diliicul't'y. In accordancewith'the present invention,however, rconstruction may be had which obviatesV such vdifiiculties;Aand desirably effective nieans 'ofy providing ample ill-uminationwithout undue' radiation losses, and' with particular'convenience ofoperation, may be prol vided'.- Other advantages in detail Ywill beap'-paret from the following description. i

To the accomplishment of thel foregoing and related' ends, theinvention, then, comprises the features hereinafter fully described, andparticularly pointed out in the' claims, the following description andthe annexed drawings settingiorth in detail certain illustrativeembodiments of the invention, thesebeing indicative, however, of but afew of the various ways' in which the principle ofthe invention maybeemployed.

In said annexed drawings:

Fig. 1 is an koutside front elevational view of a window in accordancewith the present invention;

Fig. 2 isa broken sectional View on enlarged scale, taken on a planesubstantially indicated by une n n, Fig. 1;

Fig. 3 is a fragmentary section on similar scale. taken on a planesubstantially indicated by line III-III;

Fig. 4 is a fragmentary detail section takenon a plane substantiallyindicated by line IV-IV, Figs. 2 and 3;

Fig. 5 is a further enlargedfragmentary detail in transverse sectionshowing the relationship of a glass pane 4and. its receiving framingportion, prior to the seating of the pane in position, and Fig. 6 is asimilar view with the pane in final position;

Fig. 7 is a fragmentary perspective view ofthe sash in relation tothesash-supporting framingy the parts being slightly spaced for lclearershow 111g;

' Fig. 8is aninside elevational view of construction inaccordancewitlrthe invention;

s claims. (c1. 189-72) `close connectie Fig. 9 is an enlargedfragmentary vertical seetion taken across the point of juxtapositionofthe upper' and lower s'ashes Fig. 10 is a fragmentary sectional viewon enlarged scale, taken on`a lplane substantially indicated'by lineFig. 8;

' Fig. 11 is ja transverse section on an enlarged scale, taken on aplane substantially indicate by l-ine XI-XL Fig. 8T;

Fig. 12 is afragmentary detail' elevation off a corner joint ef' insertmembers shown in Fig. 1.1; and Y Fig. 1,3 is a top plan View of thestructure shown i-n-'Fig I2.

Equipmentl in accordance with the present in.- vention may be applied:to new or old Window frame openings. 'A sash guide 2, Fig. 3,` issecured to the window frame 3L by suitable means, for example, by screws4 passing through stops 5l and flanges G of the sashguide. Desirably,the sash guide 2: is made of metal, and sheet metal of suitable gaugecan be stamped or rolled to provide the sash-guiding grooves. If themetal be of aluminum, brass, stainless steel or the like, freedom fromcorrosion or rusting is assured, and painting iis! also unnecessaryv onsuch parts. Desirablly, the sash-guiding grooves in the `sashguideyZrmayA be made narrower Lthan the thickness of the sash4 S, and` may berelatively narrow grooves 8 to receive a corresponding tongue 9 pro,-jecting from .the sash at its side or rail portions. lf such tongue 9behollow, the space maybe filled with alubricant packing, as for instancewicking saturated 4with' a suitable lubricant, and through holes.I:|,.Fig. 4i, at spaced intervals, feed of lubricant. to the: guidewaymay insurepsmonth operation in the sliding ofthe sash up and down.

The sash is formedof inner and outer charinels .l3, l.4.secured togetherl,by Asuitable means, fornnstanee spot welding, andthe flanges l l.6 arespaced suiciently to receive the `margin of the ,glass pane :(3.preferably, the flanges l5, IQB, are Slightly resilient and .1.1.1 :the.une'lzedA State may tend to Aclose sornewhatlmore' closely than with,the glass .in place',A aidthus 'a' uniformly Y* t nt may b'e'attainxd';Usually, a sealin cans I 8.1s4r desirably also" included," aridwhilethis may' talizfe thefform of' a rubber ch'a'n'- nel or thel'ikeembracing' tlieedge of the g jss pane, preferably I employ a sealingmedium Vof plasticinat'erlal which is initially fluent and'ca-n beinjectedmt th-space frqm instep artefice glass is set in position, such"plasticsealingmaterial then subsequently setting tosucierit solidmay beof cementitious character thinned by a volatile solvent whichevaporates, or more desirably it may be a thin synthetic resin whichwill set. The top edge of the sash is closed by the similar nestedchannels I3, I4, Fig. 4, fastened to the side or stile portions by anglebrackets I9. It will be noticed that by the provision of the channelmembers I3, I4, as described, the flanges I5, I 6, at each edge provideseating for double glazing, as shown most clearly in Figs. 2, 3 and '7,and the flanges being rebent toward each other thus hold the glassbetween opposed edge contacts or line contacts such as to precludeirregular warping and loosening. The glass may be set in position underconditions standardized to a minimum of moisture content for airincluded between the panes before they are sealed at the joints, orwhere desired, a vacuum may be provided between the panes. In eithercase, by reason of the efficient mount and sealing, a doubleglazedstructure may be free from excessive condensation which has been commonin doubleglazed sashes heretofore attempted.

As a further refinement, for rendering the sash particularly accessiblefor cleaning, the metal sash guide may be carried on hinges to allowswinging of the entire assembly into a position of easy accessibilityfor both sides of the glass. Thus, as illustrated in Fig. 11, the sashguide 2 may have a hinge mounting 22 along its edge, preferablypiano-type hinges being used, and thereby the entire assembly can beswung inwardly, for instance, to allow convenient cleaning. To permitsuch swinging, the stops 5 are also hinged to swing out of the way, asindicated in dotted lines at the right end of Fig. 11. Also, sufficientclearance for the swinging of the rear edge of the sash guide may beassured by slightly cutting back the adjacent window frame, as at 23,Fig. 11. With this mounting, it is desirable to provide backing strips24, of metal or wood, preferably wood, secured between the flanges ofthe sash guide 2 by suitable means, as screws 25; and the stiles andrails of such backing are preferably assembled such as to allow ofslight adjustment for possible inequalities in the window frame openingbeing equipped. Thus, the joining corner ends of the stiles and rails,as shown at Figs. 12 and 13, may have saw-cuts 21, and flat L-shapedmetal pieces 28 may be inserted therein, suitable screw fastenings orthe like 29 being set through the wood and metal assembly with thedesired dimensions as determined by the minor adjustment requisite toassure a proper fit. Desirably, a weather seal 30, Fig. 10, may beprovided on the window sill 3I, and if this be of slightly yieldablematerial, such as rubber, sponge rubber, and the like, particularlyclose tting may be attained. A sheath 32 of sheet metal may be appliedover the strip 30, affording protection and maintenance of itsplacement. If de sired, the flange of the sheet metal sash guide orsupport 2' may be extended horizontally as at 33, so as to lap over theseal when the sash support with its included sashes is in its normalposition, closed. On the top of the lower sash a weather seal 20 may beprovided to cooperate with the upper sash. If desired, the bottom sheetmetal sash guide or support may also have grooves 38 to receive acorresponding tongue 39 on the bottom of the lower sash.

Other modes of applying the principle of the invention may be employed,change being made as regards the detail described, provided the fea- 4tures stated in any of the following claims, or the equivalent of such,be employed.

I therefore particularly point out and distinctly claim as my invention:

1. In window construction, a metal sash guide member, a double glazedsash member therein formed of nested sheet metal channels with the angesof the inner channel spaced from the flanges of the outer channel tohold the edges of glass panes therebetween, and inter-engaging meansfacilitating sliding movement of the sash member in the sash guidemember including a longitudinal tongue formed in one member and alongitudinal groove formed in the adjacent portion of the other member.

2. In window construction, a double glazed sash formed of nested sheetmetal channels with the flanges of the inner channel spaced from theflanges of the outer channel to hold the edges of glass panes, saidouter channel being shaped to form a longitudinally extending tongueprojecting from each side portion of said sash, said mating iiangesbeing further rebent toward each other to engage the glass betweenopposed edge contacts, and sealing material between the glass and theflanges.

3. In a window construction, a double glazed sash formed of nested sheetmetal channels with the flanges of the inner channels spaced from theflanges of the outer channels to hold the edges of glass panes, theouter channel being shaped to form a longitudinally extending tongueprojecting from each side portion of said sash.

4. In a window construction, a double glazed sash formed of nested sheetmetal channels with the fianges of the inner channels spaced from theanges of the outer channels to hold the edges of glass panes, andsealing material between the glass and the anges, the outer channelbeing shaped to form a longitudinally extending hollow tongue projectingfrom each side portion of said sash, and apertures in said tongue.

5. In a window construction, a double glazed sash formed of nested sheetmetal channels with the lianges of the inner channels spaced from theiianges of the outer channels to hold the edges of glass panes, saidchannels including a longitudinally extending hollow tongue projectingfrom each side portion of said sash, apertures in said tongue, andlubricating means in said hollow tongue.

6. In a window construction, a sheet metal sash guide havinglongitudinal grooves, upper and lower sashes each comprising a doubleglazed sash formed of nested sheet metal channels with the flanges ofthe inner channel spaced from the flanges of the outer channel to holdthe edges of glass panes, and sealing material between the glass and theflanges, the outer channel being shaped to form a longitudinallyextending tongue projecting from each side portion of said double glazedsash, said tongues each being slidable in one of said grooves in saidsash guide.

'7. In a window construction, a sheet metal sash guide havinglongitudinal grooves, upper and lower sashes each comprising a doubleglazed sash formed of nested sheet metal channels with the fianges ofthe inner channel spaced from the flanges of the outer channel to holdthe edges of glass panes, and sealing material between the glass and theflanges, the outer channel being shaped to form a longitudinallyextending hollow tongue projecting from each side portion of said doubleglazed sash, said tongues each being s'lda'ble in one of said grooves insaid sash guide. and apertures in said tongues.

8. In a Window construction, a sheet metal sash guide havinglongitudinal grooves, upper and lower sashes each comprising a doubleglazed sash formed of nested sheet metal channels with the anges of theinner channel spaced from the ilanges of the outer channel to hold theedges of glass panes, and sealing material between the glass and theflanges, said channels including a longitudinally extending hollowtongue projecting from each side portion of said double glazed sash,said tongues each being slidable in one of said grooves in said sashguide, apertures in said tongues, and lubricating means in said hollowtongues.

WILBUR B. BURKE.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 203,820 Dyer May 21, 1878 654,129Brown July 24, 1900 741,197 Wadey Oct. 13, 1903 844,133 Jacobs Feb. 12,1907 852,276 Kershaw Apr. 30, 1907 1,113,938 Axe Oct. 20, 1914 1,232,961Ohnstrand July 10, 1917 1,249,331 Clark Dec. 11, 1917 1,636,593 DennisJuly 19, 1927 1,809,121 Hart June 9, 1931 1,885,922 Kunz et al. Nov. 1,1932 1,996,635 Axe Apr. 2, 1935 2,005,825 Sheppard June 25, 19352,025,770 Parkinson et al. Dec. 31, 1935 2,372 975 Norden Apr. 3, 1945

